1. How many hydrogen atoms are in an alkane that has 7 carbon atoms? 2. An alkane contains 18 H atoms. Name the compound.

1- there are 16 hydrogen atoms. ( heptane  C7H16)

2- The compound is octane (C8H18)

explanation

to determine any atom in an alkane, this formula is used Cn H 2n +2, where n is the number of carbon atoms in the molecule.

to find the compound in Q2 we'll apply the numbers:

C nH₂n+2

that's what i got you can count the number of atoms